package com.lagou.common;

import com.lagou.pojo.RpcRequest;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;

import java.util.List;


public class RpcDecoder extends ByteToMessageDecoder {

    private Class<?> clazz;

    private Serializer serializer;

    public RpcDecoder(Class<?> clazz, Serializer serializer) {

        this.clazz = clazz;

        this.serializer = serializer;

    }

    @Override
    protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {

        int length = byteBuf.readInt();
        byte[] content = new byte[length];
        byteBuf.readBytes(content);
        list.add(serializer.deserialize(RpcRequest.class,content));

    }

}
